.black_overlay{
  display: none;
  position: fixed;
  top: 0%;
  left: 0%;
  width: 100%;
  height: 100%;
  background-color: black;
  z-index:1001;
  -moz-opacity: 0.8;
  opacity:.80;
  filter: alpha(opacity=80);
}
 
.white_content {
  display: none;
  position: fixed;
  top: 10%;
  left: 10%;
  width: 80%;
  height: 80%;
  padding: 16px;
  border: 16px solid #c3c3c3;
  background-color: white;
  z-index:1002;
  overflow: auto;
  text-align:center;
}